Inspired by the work of Vade on his excellent Rutt Etra Quartz Composer plugin which I found on Create Digital Motion recently, I decided to update my previous 3D webcam code to include Additive Blending to make it look more similar to Vade's plugin.

NOTE: I've just found out that this code doesn't work as-is in the most recent (1.0) release of Processing. There is currently a bug when you use OpenGL and the Processing.video library together. To get around this, you can paste the code below in the setup function above the call to "size".